Dohm-DS Dual Speed Sound Conditioner by Marpac - amazon.com

Voltage: 120VDohm-DS formerly known as the Sleepmate/Sound Screen 980ACreates the soothing sound of rushing air known as white noise - with two speed operation for a greater range of soundProvides excellent noise-masking capabilities and a soft comfortable background sound where it might otherwise be too quietPerfect for baby nurseries - day care centers - college dorms - apartments - or any sleep environment where unwanted disturbing or intrusive noise is a problem